Remove Start at Login from caveats

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: laurentftech

.github/workflows/release.yml

@@ -102,8 +102,6 @@ jobs:
               <<~EOS
                 To add ntfy-macos to Launchpad:
                   sudo ln -sf #{opt_prefix}/ntfy-macos.app /Applications/
-
-                To enable Start at Login, launch the app and check the option in the menu bar.
               EOS
             end